[1][5] She started as a line judge at her local tennis club in 1997,[1] and she earned her first ITF umpiring badge in Thessaloniki in 2000.

[1][13] Her umpiring performance was seen as so good that she was more popular than Djokovic and Federer on social media after the final,[13] and Asderaki considers it the highlight of her career.

[14] She umpired at the 2019 Wimbledon Championships, included the men's singles semi-final between Novak Djokovic and Roberto Bautista Agut.

[16] In 2020, Asderaki umpired the Australian Open women's singles final between Sofia Kenin and Garbiñe Muguruza.

[17] In the 2022 Australian Open men's semifinals, Asderaki was called upon when Daniil Medvedev accused Stefanos Tsitsipas of receiving coaching from his father Apostolos in Greek.

She then umpired the men’s singles final at the 2024 US Open, when Jannik Sinner defeated Taylor Fritz.